70s Birthday Cake Ideas

Written by natalie saar
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70s Birthday Cake Ideas
A disco ball makes a great accent on a birthday cake. (Polka Dot/Polka Dot/Getty Images)

The 1970s was a decade filled with themes such as disco and flower power. Think of the imagery and colours used in the '70s to help guide your birthday cake making. Use ingredients such as fondant and decorator's frosting for crisp lines and defined designs. These ingredients can be found at grocery stores and at craft stores in the cake decorating aisles.

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Disco Ball

Make a cake using the image of a disco ball. Put a decorative disco ball on the top of the cake or design the cake in a spherical shape to look like a disco ball. Dance floors in the '70s were often lit up into a multicoloured grid, so use decorative gel or different coloured frosting to decorate the cake. Adding a disco ball decoration and frosting your cake to look like a disco floor is an easy disco cake.


Frost the cake using bright colours since this is typical of the 1970s. Use either dancer figurines or the silhouettes of dancers on your birthday cake. The shape of a dancer in bell-bottoms with one hand akimbo and the other pointed in the air is an iconic image of the 1970s, so use this to decorate your cake. If you are skilled with the decorating gel then you can use this instead of fondant to make the figure.

Peace Sign

The peace sign was alive and well in the 1970s. Use a peace sign to adorn a simple, festive birthday cake. Bake a round cake. Frost over the cake using bright, vivid colours. To make a peace sign, use gel of frosting and make a vertical line that stretches the length of the cake circle. In the middle of the line, make an upside-down V. Write a message such as "Have a Peaceful Birthday" around the cake.

Flower Cake

Colourful, cartoonlike flowers were a common image in the 1970s, so use them on your cake. Use gel, frosting or fondant to create flowers. Incorporate more '70s imagery by making the centre of the flower a yellow smiley face. Write in gel or frosting "Happy Birthday." The imagery of the smiley face will complement the message. You can also use the image of the smiley face and just write "Birthday" under the happy face.

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